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-rw-r--r--drivers/misc/habanalabs/habanalabs_ioctl.c19
-rw-r--r--include/uapi/misc/habanalabs.h9
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c
index 5d9c269d99db..6474b868ef27 100644
--- a/drivers/misc/habanalabs/habanalabs_ioctl.c
+++ b/drivers/misc/habanalabs/habanalabs_ioctl.c
@@ -242,6 +242,22 @@ static int get_clk_rate(struct hl_device *hdev, struct hl_info_args *args)
min((size_t) max_size, sizeof(clk_rate))) ? -EFAULT : 0;
}
+static int get_reset_count(struct hl_device *hdev, struct hl_info_args *args)
+{
+ struct hl_info_reset_count reset_count = {0};
+ u32 max_size = args->return_size;
+ void __user *out = (void __user *) (uintptr_t) args->return_pointer;
+
+ if ((!max_size) || (!out))
+ return -EINVAL;
+
+ reset_count.hard_reset_cnt = hdev->hard_reset_cnt;
+ reset_count.soft_reset_cnt = hdev->soft_reset_cnt;
+
+ return copy_to_user(out, &reset_count,
+ min((size_t) max_size, sizeof(reset_count))) ? -EFAULT : 0;
+}
+
static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data,
struct device *dev)
{
@@ -260,6 +276,9 @@ static int _hl_info_ioctl(struct hl_fpriv *hpriv, void *data,
case HL_INFO_DEVICE_STATUS:
return device_status_info(hdev, args);
+ case HL_INFO_RESET_COUNT:
+ return get_reset_count(hdev, args);
+
default:
break;
}
diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h
index 716e70750f23..4faa2c9767e5 100644
--- a/include/uapi/misc/habanalabs.h
+++ b/include/uapi/misc/habanalabs.h
@@ -98,6 +98,9 @@ enum hl_device_status {
* HL_INFO_CLK_RATE - Retrieve the current and maximum clock rate
* of the device in MHz. The maximum clock rate is
* configurable via sysfs parameter
+ * HL_INFO_RESET_COUNT - Retrieve the counts of the soft and hard reset
+ * operations performed on the device since the last
+ * time the driver was loaded.
*/
#define HL_INFO_HW_IP_INFO 0
#define HL_INFO_HW_EVENTS 1
@@ -107,6 +110,7 @@ enum hl_device_status {
#define HL_INFO_DEVICE_UTILIZATION 6
#define HL_INFO_HW_EVENTS_AGGREGATE 7
#define HL_INFO_CLK_RATE 8
+#define HL_INFO_RESET_COUNT 9
#define HL_INFO_VERSION_MAX_LEN 128
#define HL_INFO_CARD_NAME_MAX_LEN 16
@@ -160,6 +164,11 @@ struct hl_info_clk_rate {
__u32 max_clk_rate_mhz;
};
+struct hl_info_reset_count {
+ __u32 hard_reset_cnt;
+ __u32 soft_reset_cnt;
+};
+
struct hl_info_args {
/* Location of relevant struct in userspace */
__u64 return_pointer;